Finding the Fourth Proportional to 53,457, 73,685.67 and 42,108.53

Step by Step Solution

1. Step 1: Write the proportion equation
   53,457 : 73,685.67 = 42,108.53 : x
2. Step 2: Convert to fraction form
   53,457/73,685.67 = 42,108.53/x
3. Step 3: Cross multiply
   53,457x = 73,685.67 × 42,108.53
4. Step 4: Simplify right side
   53,457x = 3,102,794,877.34
5. Step 5: Solve for x
   x = 3,102,794,877.34/53,457
6. Step 6: Final answer
   x = 58,042.82